JPH06235403A - Synchronous control driving cylinder unit for plural operation cylinder - Google Patents

Synchronous control driving cylinder unit for plural operation cylinder

Info

Publication number
JPH06235403A
JPH06235403A JP2000093A JP2000093A JPH06235403A JP H06235403 A JPH06235403 A JP H06235403A JP 2000093 A JP2000093 A JP 2000093A JP 2000093 A JP2000093 A JP 2000093A JP H06235403 A JPH06235403 A JP H06235403A
Authority
JP
Japan
Prior art keywords
cylinders
cylinder
drive
synchronous control
stroke
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2000093A
Other languages
Japanese (ja)
Other versions
JP2741740B2 (en
Inventor
Kaoru Endo
薫 遠藤
Yukihiro Yamazaki
之弘 山崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ebara Corp
Original Assignee
Ebara Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ebara Corp filed Critical Ebara Corp
Priority to JP5020000A priority Critical patent/JP2741740B2/en
Publication of JPH06235403A publication Critical patent/JPH06235403A/en
Application granted granted Critical
Publication of JP2741740B2 publication Critical patent/JP2741740B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To provide an inexpensive unit of simple structure which can continuously conduct synchronous control of a stroke. CONSTITUTION:A plurality of operation cylinders 4a-4c are communicated with the same number of driving cylinders 8a-8c via communication piping 6 and piston rods 9a-9c of the cylinders 8a-8c are connected to a piston rod 11 of a driving source cylinder 10 via a link 9d.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、複数本の作動シリンダ
の同期制御用駆動シリンダユニットに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive cylinder unit for synchronous control of a plurality of working cylinders.

【0002】[0002]

【従来の技術】複数本の作動シリンダを同期して作動さ
せるには、従来、一般的には、これらシリンダのそれぞ
れに位置検出センサとしてリミットスイッチ、ポテンシ
ョンメータ、ロータリエンコーダなどを取付け、ストロ
ークの制御をすることにより行っている。また、近時、
水圧や油圧サーボ機構を利用し、コンピュータにより数
値的にストロークの制御を行う技術が提供されている。
2. Description of the Related Art Conventionally, in order to operate a plurality of working cylinders in synchronization, conventionally, a limit switch, a potentiometer, a rotary encoder, etc. are mounted as position detection sensors on each of these cylinders, and the stroke This is done by controlling. Also, recently
Techniques for numerically controlling strokes by a computer using water pressure or a hydraulic servo mechanism are provided.

【0003】[0003]

【発明が解決しようとする課題】上記リミットスイッチ
による方式では、段階的なストローク制御になり、連続
的なストローク制御は不可能である。
In the method using the limit switch described above, the stroke control is stepwise, and continuous stroke control is impossible.

【0004】また、ロータリエンコーダ又はサーボ機構
による制御では、連続的なストローク制御が可能である
が、しかし、装置全体の構造が、複雑かつ高価になる。
特に、シリンダ数が多いと、上記問題が大きくなる。
Further, control by a rotary encoder or a servo mechanism allows continuous stroke control, but the structure of the entire device becomes complicated and expensive.
In particular, when the number of cylinders is large, the above problem becomes serious.

【0005】本発明は、連続的にストロークを同期制御
することができる構造簡単で安価な複数本の作動シリン
ダの同期制御用駆動シリンダユニットを提供することを
目的としている。
SUMMARY OF THE INVENTION It is an object of the present invention to provide a drive cylinder unit for synchronous control of a plurality of working cylinders, which has a simple structure and is capable of continuously controlling the stroke synchronously.

【0006】[0006]

【課題を解決するための手段】本発明によれば、構造物
を支持した複数本の作動シリンダにそれぞれ一端が接続
された連通配管と、これら連通配管の他端が接続された
前記作動シリンダと同様の駆動シリンダと、これら駆動
シリンダのピストンロッドがそれぞれ連結されたリンク
と、該リンクがピストンロッドに連結された駆動源シリ
ンダとを備えている。
According to the present invention, a plurality of working cylinders supporting a structure are connected at one end to a communicating pipe, and the other end of these communicating pipes is connected to the working cylinder. The same drive cylinder, a link to which piston rods of these drive cylinders are respectively connected, and a drive source cylinder to which the link is connected to the piston rod are provided.

【0007】上記同期制御の精度を向上させるために、
作動シリンダ及び又は駆動用シリンダのストロークトッ
プ及び又はストロークエンドにおいて該シリンダのエア
抜きを行うエア抜きユニットを設けるのが好ましい。
In order to improve the accuracy of the above synchronization control,
It is preferable to provide an air bleeding unit for bleeding the working cylinder and / or the driving cylinder at the stroke top and / or stroke end.

【0008】[0008]

【作用】上記のように構成された複数本の作動シリンダ
の同期制御用駆動シリンダユニットにおいては、駆動源
シリンダの動作が作動シリンダと同数の駆動シリンダを
介して作動シリンダに伝達され、これら作動シリンダ
が、連続的に同期制御される。この際に例えば、作動シ
リンダと駆動シリンダとの有効径を同一にすると、各シ
リンダのストロークが1対1で対応する。したがって、
有効径を変えることにより、ストロークの対応を使用目
的や条件に応じて適宜に変えることも可能である。
In the drive cylinder unit for synchronous control of a plurality of working cylinders configured as described above, the operation of the drive source cylinder is transmitted to the working cylinders via the same number of driving cylinders as the working cylinders. However, synchronous control is continuously performed. At this time, for example, if the effective diameters of the working cylinder and the drive cylinder are the same, the strokes of the cylinders correspond one to one. Therefore,
By changing the effective diameter, it is possible to appropriately change the correspondence of the stroke according to the purpose of use and conditions.

【0009】[0009]

【実施例】以下図面を参照して本発明の実施例を説明す
る。
Embodiments of the present invention will be described below with reference to the drawings.

【0010】図1において、構造物1は、基礎面2に立
設された複数本(図示の例では3本)の水圧式の作動シ
リンダ4a〜4cにより基礎面2に昇降自在に支持され
ている。これらシリンダ4a〜4cのストロークエンド
には、それぞれ連通配管6の一端が接続され、これら配
管6には、給水バルブ7が介装され、他端は、シリンダ
4a〜4cと同数の駆動シリンダ8a〜8cのストロー
クエンドにそれぞれ接続されている。これらシリンダ8
a〜8cのピストンロッド9a〜9cは、それぞれリン
ク9dを介して駆動源シリンダ10のピストンロッド1
1に連結されている。
In FIG. 1, the structure 1 is supported on the foundation surface 2 so as to be movable up and down by a plurality (three in the illustrated example) of hydraulic actuating cylinders 4a to 4c provided upright on the foundation surface 2. There is. One end of a communication pipe 6 is connected to the stroke end of each of the cylinders 4a to 4c, a water supply valve 7 is interposed in the pipe 6, and the other end has the same number of drive cylinders 8a to the cylinders 4a to 4c. It is connected to each stroke end of 8c. These cylinders 8
The piston rods 9a to 9c of a to 8c are the piston rods 1 of the drive source cylinder 10 via the links 9d, respectively.
It is connected to 1.

【0011】他方、高架給水設備13には、給水配管1
4の一端が接続され、この配管14の他端は、3本の分
岐配管14a〜14cに分岐され、それぞれ給水バルブ
15を介して駆動シリンダ8a〜8cに接続されてい
る。なお、図中の符号5、12はそれぞれシリンダ4a
〜4c、8a〜8cのストロークトップに設けられたエ
ア抜きバルブである。これらの部材6〜11により駆動
シリンダユニットAが構成され、部材7、13〜15に
よりエア抜きユニットBが構成されている。
On the other hand, the elevated water supply facility 13 includes a water supply pipe 1
4 is connected to one end, and the other end of the pipe 14 is branched into three branch pipes 14a to 14c, which are respectively connected to drive cylinders 8a to 8c via a water supply valve 15. In addition, reference numerals 5 and 12 in the figure respectively indicate a cylinder 4a.
4c, 8a to 8c are air bleeding valves provided on the stroke top. The drive cylinder unit A is composed of these members 6 to 11, and the air bleeding unit B is composed of the members 7 and 13 to 15.

【0012】次に作用について説明する。Next, the operation will be described.

【0013】構造物1を上昇させる際は、駆動源シリン
ダ10を伸長作動させる。すると、リンク9d及び3個
のピストンロッド9a〜9cを介して駆動シリンダ8a
〜8cが収縮作動され、それぞれ圧水が連通配管6から
作動シリンダ4a〜4cに送られ、作動シリンダ4a〜
4cが伸長作動して構造物1を上昇させる。したがっ
て、駆動源シリンダ10のストローク設定または制御に
より、3本の作動シリンダ4a〜4cのストロークを連
続的に同期制御することができる。
When the structure 1 is raised, the drive source cylinder 10 is extended. Then, via the link 9d and the three piston rods 9a to 9c, the drive cylinder 8a
To 8c are contracted, and pressurized water is sent from the communication pipe 6 to the operating cylinders 4a to 4c, respectively.
4c extends to raise the structure 1. Therefore, by setting or controlling the stroke of the drive source cylinder 10, the strokes of the three working cylinders 4a to 4c can be continuously controlled synchronously.

【0014】また、図示のように作動シリンダ4a〜4
cがストロークトップに達した場合に、上昇位置にある
構造物1Aを構造物サポート3により基礎面2に支持
し、作動シリンダ4a〜4cに荷重がかかっていない状
態で給水バルブ15、7及びエア抜きバルブ5を開く
と、高架給水設備13からの水又は脱気水により、作動
シリンダ4a〜4c内のエアがエア抜きバルブ5から逃
がされる。また、構造物1が最下降し、駆動シリンダ8
a〜8cがストロークトップに達した場合に、給水バル
ブ15及びエア抜きバルブ12を開くと、高架給水設備
13からの水又は脱気水により駆動シリダ8a〜8c内
のエアがエア抜きバルブ12から逃がされる。このよう
に、シリンダ4a〜4c、8a〜8cのエアを逃がすこ
とにより前記の同期制御の精度を向上することができ
る。
Further, as shown in the drawing, the working cylinders 4a-4
When c reaches the stroke top, the structure 1A in the raised position is supported on the foundation surface 2 by the structure support 3 and the water supply valves 15 and 7 and the air are supplied to the working cylinders 4a to 4c without any load. When the bleeding valve 5 is opened, the air in the working cylinders 4a to 4c is released from the air bleeding valve 5 by the water or the deaerated water from the elevated water supply facility 13. Further, the structure 1 is lowered to the lowest position, and the drive cylinder 8
When the water supply valve 15 and the air bleeding valve 12 are opened when a to 8c reach the stroke top, the air in the drive cylinders 8a to 8c is removed from the air bleeding valve 12 by the water or the deaerated water from the elevated water supply facility 13. Escaped. In this way, the accuracy of the above-mentioned synchronization control can be improved by letting air from the cylinders 4a to 4c and 8a to 8c escape.

【0015】[0015]

【発明の効果】本発明は、以上説明したように構成され
ているので、構造簡単かつ安価なユニットで、複数本の
作動シリンダを精度よく連続的に同期制御することがで
きる。
Since the present invention is configured as described above, a plurality of working cylinders can be accurately and continuously controlled synchronously with a unit having a simple structure and low cost.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例を示す全体構成図。FIG. 1 is an overall configuration diagram showing an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

A・・・駆動シリンダユニット B・・・エア抜きユニット 1、1A・・・構造物 2・・・基礎面 3・・・構造物サポート 4a〜4c・・・作動シリンダ 5、12・・・エア抜きバルブ 6・・・連通配管 7、15・・・給水バルブ 8a〜8c・・・駆動シリンダ 9a〜9c、11・・・ピストンロッド 9d・・・リンク 10・・・駆動源シリンダ 13・・・高架給水設備 14・・・給水配管 14a〜14c・・・分岐配管 A ... Drive cylinder unit B ... Air bleeding unit 1, 1A ... Structure 2 ... Foundation surface 3 ... Structure support 4a-4c ... Working cylinder 5, 12 ... Air Extraction valve 6 ... Communication pipes 7, 15 ... Water supply valve 8a-8c ... Drive cylinder 9a-9c, 11 ... Piston rod 9d ... Link 10 ... Drive source cylinder 13 ... Elevated water supply facility 14 ... Water supply pipes 14a to 14c ... Branch pipes

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 構造物を支持した複数本の作動シリンダ
にそれぞれ一端が接続された連通配管と、これら連通配
管の他端が接続された前記作動シリンダと同様の駆動シ
リンダと、これら駆動シリンダのピストンロッドがそれ
ぞれ連結されたリンクと、該リンクがピストンロッドに
連結された駆動源シリンダとを備えたことを特徴とする
複数本の作動シリンダの同期制御用駆動シリンダユニッ
ト。
1. A communication pipe having one end connected to each of a plurality of working cylinders supporting a structure, a drive cylinder similar to the working cylinder connected to the other end of these communication pipes, and a drive cylinder of these drive cylinders. A drive cylinder unit for synchronous control of a plurality of working cylinders, comprising a link to which each piston rod is connected, and a drive source cylinder connected to the piston rod.
JP5020000A 1993-02-08 1993-02-08 Drive cylinder unit for synchronous control of multiple working cylinders Expired - Lifetime JP2741740B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5020000A JP2741740B2 (en) 1993-02-08 1993-02-08 Drive cylinder unit for synchronous control of multiple working cylinders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5020000A JP2741740B2 (en) 1993-02-08 1993-02-08 Drive cylinder unit for synchronous control of multiple working cylinders

Publications (2)

Publication Number Publication Date
JPH06235403A true JPH06235403A (en) 1994-08-23
JP2741740B2 JP2741740B2 (en) 1998-04-22

Family

ID=12014885

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5020000A Expired - Lifetime JP2741740B2 (en) 1993-02-08 1993-02-08 Drive cylinder unit for synchronous control of multiple working cylinders

Country Status (1)

Country Link
JP (1) JP2741740B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005026506A1 (en) * 2005-06-09 2006-12-14 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Controlling the synchronicity of piston-cylinder units for contacting a press roll with a guide roll, e.g. in a plastic film stretching unit, involves using separate hydraulic lines to balance the contact pressure at a set value
JP2010195520A (en) * 2009-02-25 2010-09-09 Nomura Four C's Ltd Booster for tap water
DE102010020684B3 (en) * 2010-05-15 2011-11-10 Voith Turbo H + L Hydraulic Gmbh & Co. Kg Device for synchronization control of two working cylinders of hydraulic drive device, has movable synchronization carrier and main drive for moving synchronization carrier

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63195107U (en) * 1987-06-04 1988-12-15

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63195107U (en) * 1987-06-04 1988-12-15

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005026506A1 (en) * 2005-06-09 2006-12-14 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Controlling the synchronicity of piston-cylinder units for contacting a press roll with a guide roll, e.g. in a plastic film stretching unit, involves using separate hydraulic lines to balance the contact pressure at a set value
DE102005026506B4 (en) * 2005-06-09 2007-09-20 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Method and device for controlling the synchronization of pressurisable piston-cylinder units when applying a pressure roller
JP2010195520A (en) * 2009-02-25 2010-09-09 Nomura Four C's Ltd Booster for tap water
DE102010020684B3 (en) * 2010-05-15 2011-11-10 Voith Turbo H + L Hydraulic Gmbh & Co. Kg Device for synchronization control of two working cylinders of hydraulic drive device, has movable synchronization carrier and main drive for moving synchronization carrier

Also Published As

Publication number Publication date
JP2741740B2 (en) 1998-04-22

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